[media] uvcvideo: Move fields from uvc_buffer::buf to uvc_buffer
Add mem, length and bytesused fields to the uvc_buffer structure and use
them instead of accessing the uvc_buffer::buf m.offset, length and
bytesused fields directly. This prepares the driver to the conversion to
videobuf2.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/uvc/uvc_isight.c b/drivers/media/video/uvc/uvc_isight.c
index 74bbe8f..8510e725 100644
--- a/drivers/media/video/uvc/uvc_isight.c
+++ b/drivers/media/video/uvc/uvc_isight.c
@@ -74,7 +74,7 @@
* Empty buffers (bytesused == 0) don't trigger end of frame detection
* as it doesn't make sense to return an empty buffer.
*/
- if (is_header && buf->buf.bytesused != 0) {
+ if (is_header && buf->bytesused != 0) {
buf->state = UVC_BUF_STATE_DONE;
return -EAGAIN;
}
@@ -83,13 +83,13 @@
* contain no data.
*/
if (!is_header) {
- maxlen = buf->buf.length - buf->buf.bytesused;
- mem = queue->mem + buf->buf.m.offset + buf->buf.bytesused;
+ maxlen = buf->length - buf->bytesused;
+ mem = buf->mem + buf->bytesused;
nbytes = min(len, maxlen);
memcpy(mem, data, nbytes);
- buf->buf.bytesused += nbytes;
+ buf->bytesused += nbytes;
- if (len > maxlen || buf->buf.bytesused == buf->buf.length) {
+ if (len > maxlen || buf->bytesused == buf->length) {
uvc_trace(UVC_TRACE_FRAME, "Frame complete "
"(overflow).\n");
buf->state = UVC_BUF_STATE_DONE;